MacBook Pro 2012 broken GPU fix

I have a 17" 2011 MacBook Pro that suffers from the notorious GPU video failure (https://www.bit-tech.net/news/tech/laptops/apple-admits-gpu-design-flaw/1/)

Here is the work-around to turn off the GPU. Credit to PeytonPlaysMc

1. Boot into Recovery Mode
   For High Sierra 10.13.4 or earlier:
   Hold Command+R+S keyboard buttons while pressing the power button
   
   For High Sierra 10.13.5 or later:
   Command+R+S (Recovery mode Single-user) no longer works.
   https://apple.stackexchange.com/questions/332587/single-user-recovery-mode-on-high-sierra-10-13-6
   
   To get to Recovery Mode,
   * Hold Command+S and press the power button
   * On prompt, type command
   

   nvram fa4ce28d-b62f-4c99-9cc3-6815686e30f9:gpu-power-prefs=%01%00%00%00

   reboot
   * Hold Command+R to enter Recovery Mode GUI
   * Click on "Utilities" on the top menu bar and pick "Terminal"
   * Goto Step 2 below
   
2.  Disable System Integrity Protection (SIP)
    Type on the command prompt
   csrutil disable
3. Reboot MacBook Pro into Single User mode
   Type on the command prompt
   reboot
   Then hold Command+S keyboard buttons
4. Hard disk check
   Type on the command prompt
   /sbin/fsck -fy
5. Mount root file system in read-write mode
   Type on the command prompt
   /sbin/mount -uw /
6. Make a directory to save the AMD drivers
   Type on the command prompt
   mkdir /AMD_save
7. Move AMD drivers to the save directory
   Type on the command prompt
   mv /System/Library/Extensions/AMD* /AMD_save
8. Delete AMD driver cache
   Type on the command prompt
   rm -rf /System/Library/Caches/com.apple.kext.caches/
9. Create AMD drive cache directory
   Type on the command prompt
   mkdir /System/Library/Caches/com.apple.kext.caches/
10. Force refresh of drive cache and reboot
    Type on the command prompt
    touch /System/Library/Extensions/
    

    nvram fa4ce28d-b62f-4c99-9cc3-6815686e30f9:gpu-power-prefs=%01%00%00%00

    reboot
11. Boot into Recovery ModeFor High Sierra 10.13.4 or earlier:
    Hold Command+R+S keyboard buttons
    
    For High Sierra 10.13.5 or later:
    See step 1 above
12. Enable System Integrity Protection (SIP)Type on the command prompt
    csrutil enable
13. Reboot MacBook Pro to normal mode.Type on the command prompt
    reboot
14. Launch Terminal in UI and type
    

    sudo nvram fa4ce28d-b62f-4c99-9cc3-6815686e30f9:gpu-power-prefs=%01%00%00%00

15. Restart MacBook Pro one final time